Question

men first ___ ( made / make / have made ) stone tools, which people ___ ( has found / have found / found) in various parts of the world, many thousands of years ago. Some people have studied intensively their development and they ___ ( identified/ is identifying/ have identified) a number of stages. choose the correct alternative.​

Answer 1

Answer:

made

found

have identified

bope it helps uu

Answer 2

Answer:

hope it was helpful

Explanation:

1) Made

2)  have found

3) identified